---
title: "LoadBalancerInstance"
slug: "common-apidatatype-loadbalancerinstance"
updated: 2026-09-17T09:25:01Z
published: 2026-09-17T09:25:01Z
canonical: "api.ncloud-docs.com/common-apidatatype-loadbalancerinstance"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# LoadBalancerInstance

Available in Classic

This is a load balancer instance.

## Syntax

The syntax is as follows.

```
private String loadBalancerInstanceNo;
private String virtualIp;
private String loadBalancerName;
private CommonCode loadBalancerAlgorithmType;
private String loadBalancerDescription;
private Date createDate;
private String domainName;
private Region region;
private List<Zone> zoneList;
private String loadBalancerInstanceStatusName;
private CommonCode loadBalancerInstanceStatus;
private CommonCode loadBalancerInstanceOperation;
private CommonCode networkUsageType;
private boolean isHttpKeepAlive;
private Integer connectionTimeout;
private String certificateName;
private List<LoadBalancerRule> loadBalancerRuleList;
private List<LoadBalancedServerInstance> loadBalancedServerInstanceList;
```

## Field

The following describes the fields.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `loadBalancerInstanceNo` | String | Required | Load balancer instance number - NAVER Cloud Platform's identifier to identify load balancer instances |
| `virtualIp` | String | Optional | Virtual IP |
| `loadBalancerName` | String | Required | Load balancer name |
| `loadBalancerAlgorithmType` | [CommonCode](/docs/en/common-apidatatype-commoncode) | Required | Load balancer algorithm type - `RR` \| `LC` \| `SIPHS` - `RR`: round robin - `LC`: least connection - `SIPHS`: source IP hash |
| `loadBalancerDescription` | String | Optional | Load balancer description |
| `createDate` | Date | Required | Creation date and time (YYYY-MM-DDThh:mm:ssZ) |
| `domainName` | String | Required | Load balancer domain name |
| `region` | Region | Required | Region where the load balancer is located |
| `zoneList` | List<[Zone](/docs/en/common-apidatatype-Zone)> | Required | Zone list where the load balancer is located |
| `loadBalancerInstanceStatus` | [CommonCode](/docs/en/common-apidatatype-commoncode) | Required | Load balancer instance status - `INIT` \| `CREAT` \| `TERMT` \| `NAVAI` \| `USED` - `INIT`: initiated - `CREAT`: created - `TERMT`: terminated - `NAVAI`: not available - `USED`: used |
| `loadBalancerInstanceOperation` | [CommonCode](/docs/en/common-apidatatype-commoncode) | Required | Load balancer instance operation status - `CREAT` \| `TERMT` \| `USE` \| `NULL` \| `CHANG` \| `DISUS` - `CREAT`: create - `TERMT`: terminate - `USE`: use - `NULL`: no operation - `CHANG`: change - `DISUS`: disuse |
| `loadBalancerInstanceStatusName` | String | Required | Load balancer instance status name - Pass the current load balancer instance status name by combining the load balancer instance status with the load balancer instance operation status - `initialized` \| `creating` \| `repairing` \| `created` \| `using` \| `used` \| `disusing` \| `changing` \| `terminated` |
| `networkUsageType` | [CommonCode](/docs/en/common-apidatatype-commoncode) | Required | Network purpose type - `PBLIP` \| `PRVT` - `PBLIP`: public - `PRVT`: private |
| `isHttpKeepAlive` | Boolean | Optional | Whether to set HttpKeepAlive - `true` \| `false` (default) |
| `connectionTimeout` | Integer | Required | Connection timeout (seconds) - 60 (default) |
| `certificateName` | String | Optional | SSL authentication name |
| `loadBalancerRuleList` | List<[LoadBalancerRule](/docs/en/common-apidatatype-LoadBalancerRule)> | Required | List of load balancer rules |
| l`oadBalancedServerInstanceList` | List<[LoadBalancedServerInstance](/docs/en/common-apidatatype-LoadBalancedServerInstance)> | Optional | List of load balancer-bound server instances |